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近年来,采用化学还原方法已制备出多种成分的过渡金属(Fe,Co,Ni)一类金属(B,P)非晶态合金超细微粒.这类材料由于兼具非晶合金和超细微粒的特点,可望成为一种新型催化剂材料.目前在非晶态合金超细微粒的制备和基本物性的研究方面已取得重大进展,但对其催化性能的研究还很少.本工作用化学还原方法制得镍基非晶态合金超细微粒,应用TEM,XRD,XPS,表面积测试和乙烯加氢反应评价等物理化学手段研究了B,P的加入对镍基非晶态合金超细微粒表面状态和催化性能的影响,以揭示类金属B,P的作用,为深入研究非晶态合金超细微粒表面结构与催化性能之间的关系提供基本信息.
In recent years, a variety of ultrafine metallic (B, P) amorphous alloy transition metals (Fe, Co, Ni) have been prepared by chemical reduction methods, Fine particles is expected to become a new type of catalyst material.Now great progress has been made in the preparation of amorphous alloy ultrafine particles and the basic physical properties, but little research on its catalytic properties. Ni-based amorphous alloy ultrafine particles were prepared by chemical reduction method. The effects of B and P addition on the microstructure of Ni-based amorphous alloy were studied by means of physical and chemical analysis such as TEM, XRD, XPS, surface area test and ethylene hydrogenation reaction. Particle surface condition and catalytic performance to reveal the role of metalloid B, P, to provide basic information for further study on the relationship between surface structure and catalytic performance of amorphous alloy ultrafine particles.